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通过协同吸收性吸收藻类 (Nostoc sphaericum) /激活粘土吸收甲蓝的研究
Yakov Felipe Carhuarupay-Molleda1, Noemí Melisa Ccasa Barboza2, Sofía Pastor-Mina2
1Basic Sciences Department, José María Arguedas National University, Andahuaylas 03701, Peru.
Polymers
|August 14, 2025
概括
一种新的纳米粘土和Nostoc sphaericum吸附剂有效地从废水中去除甲基蓝色染料. 这种环保材料具有很高的吸附能力和再生能力,促进可持续的水处理解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 织行业的废水由于染料残留而带来了重大环境挑战.
- 甲蓝 (MB) 是一种常见的阴阳性染料,其从水性介质中去除至关重要.
- 开发高效和可持续的吸附剂对于废水处理至关重要.
研究的目的:
- 为了评估由活性纳米粘土 (NC) 和微原子化Nostoc sphaericum (ANS) 组成的协同吸收剂的甲蓝的去除能力.
- 描述NC/ANS吸附剂并确定最佳的吸附条件.
- 研究NC/ANS材料的吸附动力学,热力学和再生潜力.
主要方法:
- 纳米粘土 (NC) 经过酸处理,用NaCl激活,并进行超声波处理. 诺斯托克球体 (ANS) 是微原子化的.
- 协同的NC/ANS吸附剂以4:1的重量比制备,并使用PZC,zeta潜力,粒子大小,FTIR和SEM进行了表征.
- 进行了吸附实验,以确定MB去除效率,最佳pH,吸附剂剂量,动力学和热力学.
主要成果:
- 该NC/ANS吸附剂表现出良好的体稳定性,纳米颗粒大小,以及功能组 (基,基,胺基).
- 在pH值为5-8的吸附剂剂剂量为20-30毫克/升时,MB去除效率在72.59%至97.98%之间.
- 最佳吸附发生在pH 6.8和32.9毫克/L的NC/ANS,达到大约20毫克/g的吸附能力. 吸附动力学遵循伪第一阶和伪第二阶模型,表明物理吸附. 这个过程是自发的,有利的,热力学稳定的,在第五个周期后有90.35%的再生.
结论:
- 超声波纳米粘土和微原子化Nostoc sphaericum (NC/ANS) 复合物是一种有效的,环保的吸附剂,用于去除甲蓝.
- 协同吸附剂具有很高的吸附能力,良好的稳定性和出色的再生潜力,使其适用于可持续的废水处理.
- 这种新材料为从工业废水中去除阴离子染料提供了一个有希望的替代品.
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